Naomi Osaka's revenge tour continues at the Australian Open, where she bested Karolina Muchova to advance to the third round and set up an all-mother duel against Belinda Bencic.
There was no hiding Naomi Osaka's joy -- and relief -- on Wednesday. After dropping the first set in spectacular fashion to No. 20 seed Karolina Muchova, Osaka stormed back for her biggest victory ...